Scale Factor

A dilation produces a congruent figure

• True

• False

Tags

CCSS.8.G.A.3

Similar figures have the same ______ but different ______. 

• measure; shapes
• sizes; shapes
• value; measures
• shape; sizes

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True
• False

Tags

CCSS.8.G.A.1

CCSS.8.G.A.3

CCSS.8.G.A.4

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

If your SF = 0.8, what type of dilation is it?

• Reduction

• Enlargement

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

If your SF = 2.5, what type of dilation is it?

• Reduction

• Enlargement

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point G (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.

• G' (5,3)

• G' (20,12)

• G' (-20,-12)

• G' (-5,-3)

Tags

CCSS.8.G.A.3

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.8.G.A.3